I'm guessing it's a ton of heating because houses are very badly insulated, both for historical reasons and because otherwise everything rots in hot and humid summers (and nothing ever dries completely).
Japan has the same issue (insulation is quite terrible throughout, central heating is also rare), I'm guessing Houston is even worse because people keep to western habits (light-ish indoor garments and heating the whole house).
I'm guessing it's a ton of heating because houses are very badly insulated, both for historical reasons and because otherwise everything rots in hot and humid summers (and nothing ever dries completely).
Japan has the same issue (insulation is quite terrible throughout, central heating is also rare), I'm guessing Houston is even worse because people keep to western habits (light-ish indoor garments and heating the whole house).